The filing date of this patent is 2065438+February 2007 1 day. When is the expiration date?

February 2037 1. According to the provisions of the patent law, the term of invention patent is 20 years. If the term is calculated in years or months, the date corresponding to the last month is the expiration date, so the patent application date is 20 1 February 7 1 and the expiration date is February 20371.